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Finding the Fourth Proportional to 252,385.04, 378,495.65 and 83,860.11

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Solution

The fourth proportional to 252,385.04, 378,495.65 and 83,860.11 is: 125,762.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,385.04 : 378,495.65 = 83,860.11 : x
  2. Step 2: Convert to fraction form
    252,385.04/378,495.65 = 83,860.11/x
  3. Step 3: Cross multiply
    252,385.04x = 378,495.65 × 83,860.11
  4. Step 4: Simplify right side
    252,385.04x = 31,740,686,424.22
  5. Step 5: Solve for x
    x = 31,740,686,424.22/252,385.04
  6. Step 6: Final answer
    x = 125,762.95

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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.