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Finding the Fourth Proportional to 225,061.59, 310,623.18 and 129,623.52

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Solution

The fourth proportional to 225,061.59, 310,623.18 and 129,623.52 is: 178,902.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,061.59 : 310,623.18 = 129,623.52 : x
  2. Step 2: Convert to fraction form
    225,061.59/310,623.18 = 129,623.52/x
  3. Step 3: Cross multiply
    225,061.59x = 310,623.18 × 129,623.52
  4. Step 4: Simplify right side
    225,061.59x = 40,264,069,985.19
  5. Step 5: Solve for x
    x = 40,264,069,985.19/225,061.59
  6. Step 6: Final answer
    x = 178,902.45

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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.