Home / 282,924.69-390,443.45-155,603.62

Finding the Fourth Proportional to 282,924.69, 390,443.45 and 155,603.62

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Solution

The fourth proportional to 282,924.69, 390,443.45 and 155,603.62 is: 214,737.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,924.69 : 390,443.45 = 155,603.62 : x
  2. Step 2: Convert to fraction form
    282,924.69/390,443.45 = 155,603.62/x
  3. Step 3: Cross multiply
    282,924.69x = 390,443.45 × 155,603.62
  4. Step 4: Simplify right side
    282,924.69x = 60,754,414,225.29
  5. Step 5: Solve for x
    x = 60,754,414,225.29/282,924.69
  6. Step 6: Final answer
    x = 214,737.05

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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.