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Finding the Fourth Proportional to 178,075.20, 267,112.80 and 118,718.40

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Solution

The fourth proportional to 178,075.20, 267,112.80 and 118,718.40 is: 178,077.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,075.20 : 267,112.80 = 118,718.40 : x
  2. Step 2: Convert to fraction form
    178,075.20/267,112.80 = 118,718.40/x
  3. Step 3: Cross multiply
    178,075.20x = 267,112.80 × 118,718.40
  4. Step 4: Simplify right side
    178,075.20x = 31,711,204,235.52
  5. Step 5: Solve for x
    x = 31,711,204,235.52/178,075.20
  6. Step 6: Final answer
    x = 178,077.60

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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.