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Finding the Fourth Proportional to 229,323.65, 316,616.52 and 148,980.16

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Solution

The fourth proportional to 229,323.65, 316,616.52 and 148,980.16 is: 205,689.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,323.65 : 316,616.52 = 148,980.16 : x
  2. Step 2: Convert to fraction form
    229,323.65/316,616.52 = 148,980.16/x
  3. Step 3: Cross multiply
    229,323.65x = 316,616.52 × 148,980.16
  4. Step 4: Simplify right side
    229,323.65x = 47,169,578,225.16
  5. Step 5: Solve for x
    x = 47,169,578,225.16/229,323.65
  6. Step 6: Final answer
    x = 205,689.99

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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.