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Finding the Fourth Proportional to 374,400.98, 516,902.28 and 243,703.16

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Solution

The fourth proportional to 374,400.98, 516,902.28 and 243,703.16 is: 336,459.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,400.98 : 516,902.28 = 243,703.16 : x
  2. Step 2: Convert to fraction form
    374,400.98/516,902.28 = 243,703.16/x
  3. Step 3: Cross multiply
    374,400.98x = 516,902.28 × 243,703.16
  4. Step 4: Simplify right side
    374,400.98x = 125,970,719,047.21
  5. Step 5: Solve for x
    x = 125,970,719,047.21/374,400.98
  6. Step 6: Final answer
    x = 336,459.37

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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.