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Finding the Fourth Proportional to 202,979.90, 304,210.65 and 155,999.90

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Solution

The fourth proportional to 202,979.90, 304,210.65 and 155,999.90 is: 233,800.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,979.90 : 304,210.65 = 155,999.90 : x
  2. Step 2: Convert to fraction form
    202,979.90/304,210.65 = 155,999.90/x
  3. Step 3: Cross multiply
    202,979.90x = 304,210.65 × 155,999.90
  4. Step 4: Simplify right side
    202,979.90x = 47,456,830,978.94
  5. Step 5: Solve for x
    x = 47,456,830,978.94/202,979.90
  6. Step 6: Final answer
    x = 233,800.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.