Home / 219,437.28-302,821.20-123,943.68

Finding the Fourth Proportional to 219,437.28, 302,821.20 and 123,943.68

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Solution

The fourth proportional to 219,437.28, 302,821.20 and 123,943.68 is: 171,041.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,437.28 : 302,821.20 = 123,943.68 : x
  2. Step 2: Convert to fraction form
    219,437.28/302,821.20 = 123,943.68/x
  3. Step 3: Cross multiply
    219,437.28x = 302,821.20 × 123,943.68
  4. Step 4: Simplify right side
    219,437.28x = 37,532,773,910.02
  5. Step 5: Solve for x
    x = 37,532,773,910.02/219,437.28
  6. Step 6: Final answer
    x = 171,041.01

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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.