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Finding the Fourth Proportional to 242,285.65, 333,995.65 and 155,061.13

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Solution

The fourth proportional to 242,285.65, 333,995.65 and 155,061.13 is: 213,754.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,285.65 : 333,995.65 = 155,061.13 : x
  2. Step 2: Convert to fraction form
    242,285.65/333,995.65 = 155,061.13/x
  3. Step 3: Cross multiply
    242,285.65x = 333,995.65 × 155,061.13
  4. Step 4: Simplify right side
    242,285.65x = 51,789,742,904.08
  5. Step 5: Solve for x
    x = 51,789,742,904.08/242,285.65
  6. Step 6: Final answer
    x = 213,754.89

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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.