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Finding the Fourth Proportional to 242,689.80, 364,034.70 and 102,606.60

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Solution

The fourth proportional to 242,689.80, 364,034.70 and 102,606.60 is: 153,909.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,689.80 : 364,034.70 = 102,606.60 : x
  2. Step 2: Convert to fraction form
    242,689.80/364,034.70 = 102,606.60/x
  3. Step 3: Cross multiply
    242,689.80x = 364,034.70 × 102,606.60
  4. Step 4: Simplify right side
    242,689.80x = 37,352,362,849.02
  5. Step 5: Solve for x
    x = 37,352,362,849.02/242,689.80
  6. Step 6: Final answer
    x = 153,909.90

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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.