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Finding the Fourth Proportional to 452,197.60, 678,393.60 and 136,686.40

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Solution

The fourth proportional to 452,197.60, 678,393.60 and 136,686.40 is: 205,058.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,197.60 : 678,393.60 = 136,686.40 : x
  2. Step 2: Convert to fraction form
    452,197.60/678,393.60 = 136,686.40/x
  3. Step 3: Cross multiply
    452,197.60x = 678,393.60 × 136,686.40
  4. Step 4: Simplify right side
    452,197.60x = 92,727,178,967.04
  5. Step 5: Solve for x
    x = 92,727,178,967.04/452,197.60
  6. Step 6: Final answer
    x = 205,058.98

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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.