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Finding the Fourth Proportional to 429,215.76, 592,313.40 and 238,230.80

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Solution

The fourth proportional to 429,215.76, 592,313.40 and 238,230.80 is: 328,756.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,215.76 : 592,313.40 = 238,230.80 : x
  2. Step 2: Convert to fraction form
    429,215.76/592,313.40 = 238,230.80/x
  3. Step 3: Cross multiply
    429,215.76x = 592,313.40 × 238,230.80
  4. Step 4: Simplify right side
    429,215.76x = 141,107,295,132.72
  5. Step 5: Solve for x
    x = 141,107,295,132.72/429,215.76
  6. Step 6: Final answer
    x = 328,756.09

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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.