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Finding the Fourth Proportional to 282,610.95, 390,003.01 and 155,294.74

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Solution

The fourth proportional to 282,610.95, 390,003.01 and 155,294.74 is: 214,306.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,610.95 : 390,003.01 = 155,294.74 : x
  2. Step 2: Convert to fraction form
    282,610.95/390,003.01 = 155,294.74/x
  3. Step 3: Cross multiply
    282,610.95x = 390,003.01 × 155,294.74
  4. Step 4: Simplify right side
    282,610.95x = 60,565,416,037.17
  5. Step 5: Solve for x
    x = 60,565,416,037.17/282,610.95
  6. Step 6: Final answer
    x = 214,306.69

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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.