Home / 310,730.01-428,743.04-181,643.42

Finding the Fourth Proportional to 310,730.01, 428,743.04 and 181,643.42

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Solution

The fourth proportional to 310,730.01, 428,743.04 and 181,643.42 is: 250,630.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,730.01 : 428,743.04 = 181,643.42 : x
  2. Step 2: Convert to fraction form
    310,730.01/428,743.04 = 181,643.42/x
  3. Step 3: Cross multiply
    310,730.01x = 428,743.04 × 181,643.42
  4. Step 4: Simplify right side
    310,730.01x = 77,878,349,034.86
  5. Step 5: Solve for x
    x = 77,878,349,034.86/310,730.01
  6. Step 6: Final answer
    x = 250,630.28

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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.