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Finding the Fourth Proportional to 282,777.68, 390,103.20 and 250,545.20

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Solution

The fourth proportional to 282,777.68, 390,103.20 and 250,545.20 is: 345,637.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,777.68 : 390,103.20 = 250,545.20 : x
  2. Step 2: Convert to fraction form
    282,777.68/390,103.20 = 250,545.20/x
  3. Step 3: Cross multiply
    282,777.68x = 390,103.20 × 250,545.20
  4. Step 4: Simplify right side
    282,777.68x = 97,738,484,264.64
  5. Step 5: Solve for x
    x = 97,738,484,264.64/282,777.68
  6. Step 6: Final answer
    x = 345,637.20

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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.