Home / 340,382.83-469,521.07-209,581.53

Finding the Fourth Proportional to 340,382.83, 469,521.07 and 209,581.53

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Solution

The fourth proportional to 340,382.83, 469,521.07 and 209,581.53 is: 289,094.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,382.83 : 469,521.07 = 209,581.53 : x
  2. Step 2: Convert to fraction form
    340,382.83/469,521.07 = 209,581.53/x
  3. Step 3: Cross multiply
    340,382.83x = 469,521.07 × 209,581.53
  4. Step 4: Simplify right side
    340,382.83x = 98,402,943,693.88
  5. Step 5: Solve for x
    x = 98,402,943,693.88/340,382.83
  6. Step 6: Final answer
    x = 289,094.91

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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.