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Finding the Fourth Proportional to 249,689.58, 344,547.84 and 142,256.85

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Solution

The fourth proportional to 249,689.58, 344,547.84 and 142,256.85 is: 196,300.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,689.58 : 344,547.84 = 142,256.85 : x
  2. Step 2: Convert to fraction form
    249,689.58/344,547.84 = 142,256.85/x
  3. Step 3: Cross multiply
    249,689.58x = 344,547.84 × 142,256.85
  4. Step 4: Simplify right side
    249,689.58x = 49,014,290,392.70
  5. Step 5: Solve for x
    x = 49,014,290,392.70/249,689.58
  6. Step 6: Final answer
    x = 196,300.90

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1.5x scale

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.