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Finding the Fourth Proportional to 257,348.97, 386,075.00 and 88,875.45

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Solution

The fourth proportional to 257,348.97, 386,075.00 and 88,875.45 is: 133,330.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,348.97 : 386,075.00 = 88,875.45 : x
  2. Step 2: Convert to fraction form
    257,348.97/386,075.00 = 88,875.45/x
  3. Step 3: Cross multiply
    257,348.97x = 386,075.00 × 88,875.45
  4. Step 4: Simplify right side
    257,348.97x = 34,312,589,580.94
  5. Step 5: Solve for x
    x = 34,312,589,580.94/257,348.97
  6. Step 6: Final answer
    x = 133,330.98

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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.