Home / 282,929.76-390,446.33-155,607.48

Finding the Fourth Proportional to 282,929.76, 390,446.33 and 155,607.48

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Solution

The fourth proportional to 282,929.76, 390,446.33 and 155,607.48 is: 214,740.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,929.76 : 390,446.33 = 155,607.48 : x
  2. Step 2: Convert to fraction form
    282,929.76/390,446.33 = 155,607.48/x
  3. Step 3: Cross multiply
    282,929.76x = 390,446.33 × 155,607.48
  4. Step 4: Simplify right side
    282,929.76x = 60,756,368,708.51
  5. Step 5: Solve for x
    x = 60,756,368,708.51/282,929.76
  6. Step 6: Final answer
    x = 214,740.11

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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.