Home / 210,357.29-290,330.48-124,312.61

Finding the Fourth Proportional to 210,357.29, 290,330.48 and 124,312.61

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Solution

The fourth proportional to 210,357.29, 290,330.48 and 124,312.61 is: 171,573.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,357.29 : 290,330.48 = 124,312.61 : x
  2. Step 2: Convert to fraction form
    210,357.29/290,330.48 = 124,312.61/x
  3. Step 3: Cross multiply
    210,357.29x = 290,330.48 × 124,312.61
  4. Step 4: Simplify right side
    210,357.29x = 36,091,739,109.79
  5. Step 5: Solve for x
    x = 36,091,739,109.79/210,357.29
  6. Step 6: Final answer
    x = 171,573.51

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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.