Home / 245,317.28-338,547.42-137,886.98

Finding the Fourth Proportional to 245,317.28, 338,547.42 and 137,886.98

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Solution

The fourth proportional to 245,317.28, 338,547.42 and 137,886.98 is: 190,289.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,317.28 : 338,547.42 = 137,886.98 : x
  2. Step 2: Convert to fraction form
    245,317.28/338,547.42 = 137,886.98/x
  3. Step 3: Cross multiply
    245,317.28x = 338,547.42 × 137,886.98
  4. Step 4: Simplify right side
    245,317.28x = 46,681,281,330.59
  5. Step 5: Solve for x
    x = 46,681,281,330.59/245,317.28
  6. Step 6: Final answer
    x = 190,289.41

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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.