Home / 282,799.50-390,265.95-155,476

Finding the Fourth Proportional to 282,799.50, 390,265.95 and 155,476

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Solution

The fourth proportional to 282,799.50, 390,265.95 and 155,476 is: 214,558.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,799.50 : 390,265.95 = 155,476 : x
  2. Step 2: Convert to fraction form
    282,799.50/390,265.95 = 155,476/x
  3. Step 3: Cross multiply
    282,799.50x = 390,265.95 × 155,476
  4. Step 4: Simplify right side
    282,799.50x = 60,676,988,842.20
  5. Step 5: Solve for x
    x = 60,676,988,842.20/282,799.50
  6. Step 6: Final answer
    x = 214,558.33

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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.