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Finding the Fourth Proportional to 285,710.80, 429,554.40 and 267,210.40

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Solution

The fourth proportional to 285,710.80, 429,554.40 and 267,210.40 is: 401,739.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,710.80 : 429,554.40 = 267,210.40 : x
  2. Step 2: Convert to fraction form
    285,710.80/429,554.40 = 267,210.40/x
  3. Step 3: Cross multiply
    285,710.80x = 429,554.40 × 267,210.40
  4. Step 4: Simplify right side
    285,710.80x = 114,781,403,045.76
  5. Step 5: Solve for x
    x = 114,781,403,045.76/285,710.80
  6. Step 6: Final answer
    x = 401,739.81

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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.