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Finding the Fourth Proportional to 279,545.58, 385,337.25 and 234,143.46

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Solution

The fourth proportional to 279,545.58, 385,337.25 and 234,143.46 is: 322,753.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,545.58 : 385,337.25 = 234,143.46 : x
  2. Step 2: Convert to fraction form
    279,545.58/385,337.25 = 234,143.46/x
  3. Step 3: Cross multiply
    279,545.58x = 385,337.25 × 234,143.46
  4. Step 4: Simplify right side
    279,545.58x = 90,224,196,981.89
  5. Step 5: Solve for x
    x = 90,224,196,981.89/279,545.58
  6. Step 6: Final answer
    x = 322,753.08

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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.