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Finding the Fourth Proportional to 485,393.58, 669,846.24 and 270,547.29

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Solution

The fourth proportional to 485,393.58, 669,846.24 and 270,547.29 is: 373,356.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,393.58 : 669,846.24 = 270,547.29 : x
  2. Step 2: Convert to fraction form
    485,393.58/669,846.24 = 270,547.29/x
  3. Step 3: Cross multiply
    485,393.58x = 669,846.24 × 270,547.29
  4. Step 4: Simplify right side
    485,393.58x = 181,225,084,948.69
  5. Step 5: Solve for x
    x = 181,225,084,948.69/485,393.58
  6. Step 6: Final answer
    x = 373,356.99

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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.