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Finding the Fourth Proportional to 305,666.10, 458,499.15 and 84,050.10

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Solution

The fourth proportional to 305,666.10, 458,499.15 and 84,050.10 is: 126,075.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,666.10 : 458,499.15 = 84,050.10 : x
  2. Step 2: Convert to fraction form
    305,666.10/458,499.15 = 84,050.10/x
  3. Step 3: Cross multiply
    305,666.10x = 458,499.15 × 84,050.10
  4. Step 4: Simplify right side
    305,666.10x = 38,536,899,407.42
  5. Step 5: Solve for x
    x = 38,536,899,407.42/305,666.10
  6. Step 6: Final answer
    x = 126,075.15

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.