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Finding the Fourth Proportional to 249,129, 343,802.88 and 148,527

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Solution

The fourth proportional to 249,129, 343,802.88 and 148,527 is: 204,970.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,129 : 343,802.88 = 148,527 : x
  2. Step 2: Convert to fraction form
    249,129/343,802.88 = 148,527/x
  3. Step 3: Cross multiply
    249,129x = 343,802.88 × 148,527
  4. Step 4: Simplify right side
    249,129x = 51,064,010,357.76
  5. Step 5: Solve for x
    x = 51,064,010,357.76/249,129
  6. Step 6: Final answer
    x = 204,970.16

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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.