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Finding the Fourth Proportional to 302,602.20, 453,903.30 and 287,050.20

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Solution

The fourth proportional to 302,602.20, 453,903.30 and 287,050.20 is: 430,575.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,602.20 : 453,903.30 = 287,050.20 : x
  2. Step 2: Convert to fraction form
    302,602.20/453,903.30 = 287,050.20/x
  3. Step 3: Cross multiply
    302,602.20x = 453,903.30 × 287,050.20
  4. Step 4: Simplify right side
    302,602.20x = 130,293,033,045.66
  5. Step 5: Solve for x
    x = 130,293,033,045.66/302,602.20
  6. Step 6: Final answer
    x = 430,575.30

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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.