Home / 238,740.14-358,079.61-78,776.48

Finding the Fourth Proportional to 238,740.14, 358,079.61 and 78,776.48

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Solution

The fourth proportional to 238,740.14, 358,079.61 and 78,776.48 is: 118,154.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,740.14 : 358,079.61 = 78,776.48 : x
  2. Step 2: Convert to fraction form
    238,740.14/358,079.61 = 78,776.48/x
  3. Step 3: Cross multiply
    238,740.14x = 358,079.61 × 78,776.48
  4. Step 4: Simplify right side
    238,740.14x = 28,208,249,445.17
  5. Step 5: Solve for x
    x = 28,208,249,445.17/238,740.14
  6. Step 6: Final answer
    x = 118,154.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.