Home / 282,913.57-390,423.49-153,854.81

Finding the Fourth Proportional to 282,913.57, 390,423.49 and 153,854.81

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Solution

The fourth proportional to 282,913.57, 390,423.49 and 153,854.81 is: 212,321.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,913.57 : 390,423.49 = 153,854.81 : x
  2. Step 2: Convert to fraction form
    282,913.57/390,423.49 = 153,854.81/x
  3. Step 3: Cross multiply
    282,913.57x = 390,423.49 × 153,854.81
  4. Step 4: Simplify right side
    282,913.57x = 60,068,531,873.49
  5. Step 5: Solve for x
    x = 60,068,531,873.49/282,913.57
  6. Step 6: Final answer
    x = 212,321.14

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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.