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Finding the Fourth Proportional to 357,777.80, 536,666.70 and 108,459.72

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Solution

The fourth proportional to 357,777.80, 536,666.70 and 108,459.72 is: 162,689.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,777.80 : 536,666.70 = 108,459.72 : x
  2. Step 2: Convert to fraction form
    357,777.80/536,666.70 = 108,459.72/x
  3. Step 3: Cross multiply
    357,777.80x = 536,666.70 × 108,459.72
  4. Step 4: Simplify right side
    357,777.80x = 58,206,720,015.32
  5. Step 5: Solve for x
    x = 58,206,720,015.32/357,777.80
  6. Step 6: Final answer
    x = 162,689.58

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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.