Home / 282,981.40-390,512.56-160,497.16

Finding the Fourth Proportional to 282,981.40, 390,512.56 and 160,497.16

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Solution

The fourth proportional to 282,981.40, 390,512.56 and 160,497.16 is: 221,485.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,981.40 : 390,512.56 = 160,497.16 : x
  2. Step 2: Convert to fraction form
    282,981.40/390,512.56 = 160,497.16/x
  3. Step 3: Cross multiply
    282,981.40x = 390,512.56 × 160,497.16
  4. Step 4: Simplify right side
    282,981.40x = 62,676,156,824.33
  5. Step 5: Solve for x
    x = 62,676,156,824.33/282,981.40
  6. Step 6: Final answer
    x = 221,485.08

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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.