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Finding the Fourth Proportional to 249,607.89, 344,458.29 and 136,431.45

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Solution

The fourth proportional to 249,607.89, 344,458.29 and 136,431.45 is: 188,275.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,607.89 : 344,458.29 = 136,431.45 : x
  2. Step 2: Convert to fraction form
    249,607.89/344,458.29 = 136,431.45/x
  3. Step 3: Cross multiply
    249,607.89x = 344,458.29 × 136,431.45
  4. Step 4: Simplify right side
    249,607.89x = 46,994,943,969.22
  5. Step 5: Solve for x
    x = 46,994,943,969.22/249,607.89
  6. Step 6: Final answer
    x = 188,275.07

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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.