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Finding the Fourth Proportional to 279,750.16, 386,050.36 and 152,426.80

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Solution

The fourth proportional to 279,750.16, 386,050.36 and 152,426.80 is: 210,346.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,750.16 : 386,050.36 = 152,426.80 : x
  2. Step 2: Convert to fraction form
    279,750.16/386,050.36 = 152,426.80/x
  3. Step 3: Cross multiply
    279,750.16x = 386,050.36 × 152,426.80
  4. Step 4: Simplify right side
    279,750.16x = 58,844,421,013.65
  5. Step 5: Solve for x
    x = 58,844,421,013.65/279,750.16
  6. Step 6: Final answer
    x = 210,346.34

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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.