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Finding the Fourth Proportional to 457,185.62, 630,926.40 and 260,948.20

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Solution

The fourth proportional to 457,185.62, 630,926.40 and 260,948.20 is: 360,114.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,185.62 : 630,926.40 = 260,948.20 : x
  2. Step 2: Convert to fraction form
    457,185.62/630,926.40 = 260,948.20/x
  3. Step 3: Cross multiply
    457,185.62x = 630,926.40 × 260,948.20
  4. Step 4: Simplify right side
    457,185.62x = 164,639,108,412.48
  5. Step 5: Solve for x
    x = 164,639,108,412.48/457,185.62
  6. Step 6: Final answer
    x = 360,114.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.