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Finding the Fourth Proportional to 457,237.29, 630,980.65 and 253,287.60

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Solution

The fourth proportional to 457,237.29, 630,980.65 and 253,287.60 is: 349,533.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,237.29 : 630,980.65 = 253,287.60 : x
  2. Step 2: Convert to fraction form
    457,237.29/630,980.65 = 253,287.60/x
  3. Step 3: Cross multiply
    457,237.29x = 630,980.65 × 253,287.60
  4. Step 4: Simplify right side
    457,237.29x = 159,819,574,484.94
  5. Step 5: Solve for x
    x = 159,819,574,484.94/457,237.29
  6. Step 6: Final answer
    x = 349,533.12

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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.