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Finding the Fourth Proportional to 286,276.60, 429,047.70 and 159,916.60

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Solution

The fourth proportional to 286,276.60, 429,047.70 and 159,916.60 is: 239,669.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,276.60 : 429,047.70 = 159,916.60 : x
  2. Step 2: Convert to fraction form
    286,276.60/429,047.70 = 159,916.60/x
  3. Step 3: Cross multiply
    286,276.60x = 429,047.70 × 159,916.60
  4. Step 4: Simplify right side
    286,276.60x = 68,611,849,421.82
  5. Step 5: Solve for x
    x = 68,611,849,421.82/286,276.60
  6. Step 6: Final answer
    x = 239,669.78

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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.