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Finding the Fourth Proportional to 355,116.60, 532,415.70 and 144,646.20

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Solution

The fourth proportional to 355,116.60, 532,415.70 and 144,646.20 is: 216,863.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,116.60 : 532,415.70 = 144,646.20 : x
  2. Step 2: Convert to fraction form
    355,116.60/532,415.70 = 144,646.20/x
  3. Step 3: Cross multiply
    355,116.60x = 532,415.70 × 144,646.20
  4. Step 4: Simplify right side
    355,116.60x = 77,011,907,825.34
  5. Step 5: Solve for x
    x = 77,011,907,825.34/355,116.60
  6. Step 6: Final answer
    x = 216,863.72

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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.