Home / 249,870.31-344,823.74-136,690.63

Finding the Fourth Proportional to 249,870.31, 344,823.74 and 136,690.63

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Solution

The fourth proportional to 249,870.31, 344,823.74 and 136,690.63 is: 188,634.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,870.31 : 344,823.74 = 136,690.63 : x
  2. Step 2: Convert to fraction form
    249,870.31/344,823.74 = 136,690.63/x
  3. Step 3: Cross multiply
    249,870.31x = 344,823.74 × 136,690.63
  4. Step 4: Simplify right side
    249,870.31x = 47,134,172,877.16
  5. Step 5: Solve for x
    x = 47,134,172,877.16/249,870.31
  6. Step 6: Final answer
    x = 188,634.55

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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.