Home / 340,020.15-510,030.59-126,784.81

Finding the Fourth Proportional to 340,020.15, 510,030.59 and 126,784.81

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Solution

The fourth proportional to 340,020.15, 510,030.59 and 126,784.81 is: 190,177.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,020.15 : 510,030.59 = 126,784.81 : x
  2. Step 2: Convert to fraction form
    340,020.15/510,030.59 = 126,784.81/x
  3. Step 3: Cross multiply
    340,020.15x = 510,030.59 × 126,784.81
  4. Step 4: Simplify right side
    340,020.15x = 64,664,131,447.34
  5. Step 5: Solve for x
    x = 64,664,131,447.34/340,020.15
  6. Step 6: Final answer
    x = 190,177.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.