Home / 310,215.43-428,030.89-181,095.30

Finding the Fourth Proportional to 310,215.43, 428,030.89 and 181,095.30

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Solution

The fourth proportional to 310,215.43, 428,030.89 and 181,095.30 is: 249,872.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,215.43 : 428,030.89 = 181,095.30 : x
  2. Step 2: Convert to fraction form
    310,215.43/428,030.89 = 181,095.30/x
  3. Step 3: Cross multiply
    310,215.43x = 428,030.89 × 181,095.30
  4. Step 4: Simplify right side
    310,215.43x = 77,514,382,433.82
  5. Step 5: Solve for x
    x = 77,514,382,433.82/310,215.43
  6. Step 6: Final answer
    x = 249,872.75

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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.