Home / 282,732.59-390,172.28-155,416.39

Finding the Fourth Proportional to 282,732.59, 390,172.28 and 155,416.39

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Solution

The fourth proportional to 282,732.59, 390,172.28 and 155,416.39 is: 214,475.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,732.59 : 390,172.28 = 155,416.39 : x
  2. Step 2: Convert to fraction form
    282,732.59/390,172.28 = 155,416.39/x
  3. Step 3: Cross multiply
    282,732.59x = 390,172.28 × 155,416.39
  4. Step 4: Simplify right side
    282,732.59x = 60,639,165,483.16
  5. Step 5: Solve for x
    x = 60,639,165,483.16/282,732.59
  6. Step 6: Final answer
    x = 214,475.33

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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.