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Finding the Fourth Proportional to 456,686.90, 630,217.96 and 249,954.29

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Solution

The fourth proportional to 456,686.90, 630,217.96 and 249,954.29 is: 344,931.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,686.90 : 630,217.96 = 249,954.29 : x
  2. Step 2: Convert to fraction form
    456,686.90/630,217.96 = 249,954.29/x
  3. Step 3: Cross multiply
    456,686.90x = 630,217.96 × 249,954.29
  4. Step 4: Simplify right side
    456,686.90x = 157,525,682,737.05
  5. Step 5: Solve for x
    x = 157,525,682,737.05/456,686.90
  6. Step 6: Final answer
    x = 344,931.47

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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.