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Finding the Fourth Proportional to 291,666.68, 402,500.15 and 157,530.68

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Solution

The fourth proportional to 291,666.68, 402,500.15 and 157,530.68 is: 217,392.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,666.68 : 402,500.15 = 157,530.68 : x
  2. Step 2: Convert to fraction form
    291,666.68/402,500.15 = 157,530.68/x
  3. Step 3: Cross multiply
    291,666.68x = 402,500.15 × 157,530.68
  4. Step 4: Simplify right side
    291,666.68x = 63,406,122,329.60
  5. Step 5: Solve for x
    x = 63,406,122,329.60/291,666.68
  6. Step 6: Final answer
    x = 217,392.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.