Home / 246,721.40-369,995.70-128,353.40

Finding the Fourth Proportional to 246,721.40, 369,995.70 and 128,353.40

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Solution

The fourth proportional to 246,721.40, 369,995.70 and 128,353.40 is: 192,485.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,721.40 : 369,995.70 = 128,353.40 : x
  2. Step 2: Convert to fraction form
    246,721.40/369,995.70 = 128,353.40/x
  3. Step 3: Cross multiply
    246,721.40x = 369,995.70 × 128,353.40
  4. Step 4: Simplify right side
    246,721.40x = 47,490,206,080.38
  5. Step 5: Solve for x
    x = 47,490,206,080.38/246,721.40
  6. Step 6: Final answer
    x = 192,485.15

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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.