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Finding the Fourth Proportional to 292,025.80, 438,038.70 and 272,342.80

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Solution

The fourth proportional to 292,025.80, 438,038.70 and 272,342.80 is: 408,514.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,025.80 : 438,038.70 = 272,342.80 : x
  2. Step 2: Convert to fraction form
    292,025.80/438,038.70 = 272,342.80/x
  3. Step 3: Cross multiply
    292,025.80x = 438,038.70 × 272,342.80
  4. Step 4: Simplify right side
    292,025.80x = 119,296,686,066.36
  5. Step 5: Solve for x
    x = 119,296,686,066.36/292,025.80
  6. Step 6: Final answer
    x = 408,514.20

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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.