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Finding the Fourth Proportional to 249,888.70, 344,890.80 and 147,970.74

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Solution

The fourth proportional to 249,888.70, 344,890.80 and 147,970.74 is: 204,225.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,888.70 : 344,890.80 = 147,970.74 : x
  2. Step 2: Convert to fraction form
    249,888.70/344,890.80 = 147,970.74/x
  3. Step 3: Cross multiply
    249,888.70x = 344,890.80 × 147,970.74
  4. Step 4: Simplify right side
    249,888.70x = 51,033,746,895.19
  5. Step 5: Solve for x
    x = 51,033,746,895.19/249,888.70
  6. Step 6: Final answer
    x = 204,225.91

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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.