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Finding the Fourth Proportional to 249,482.88, 344,309.76 and 136,322.40

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Solution

The fourth proportional to 249,482.88, 344,309.76 and 136,322.40 is: 188,137.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,482.88 : 344,309.76 = 136,322.40 : x
  2. Step 2: Convert to fraction form
    249,482.88/344,309.76 = 136,322.40/x
  3. Step 3: Cross multiply
    249,482.88x = 344,309.76 × 136,322.40
  4. Step 4: Simplify right side
    249,482.88x = 46,937,132,826.62
  5. Step 5: Solve for x
    x = 46,937,132,826.62/249,482.88
  6. Step 6: Final answer
    x = 188,137.69

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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.