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Finding the Fourth Proportional to 292,238.70, 438,325.65 and 239,556.30

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Solution

The fourth proportional to 292,238.70, 438,325.65 and 239,556.30 is: 359,307.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,238.70 : 438,325.65 = 239,556.30 : x
  2. Step 2: Convert to fraction form
    292,238.70/438,325.65 = 239,556.30/x
  3. Step 3: Cross multiply
    292,238.70x = 438,325.65 × 239,556.30
  4. Step 4: Simplify right side
    292,238.70x = 105,003,670,909.10
  5. Step 5: Solve for x
    x = 105,003,670,909.10/292,238.70
  6. Step 6: Final answer
    x = 359,307.89

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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.