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Finding the Fourth Proportional to 475,454.80, 713,009.40 and 238,718.80

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Solution

The fourth proportional to 475,454.80, 713,009.40 and 238,718.80 is: 357,991.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,454.80 : 713,009.40 = 238,718.80 : x
  2. Step 2: Convert to fraction form
    475,454.80/713,009.40 = 238,718.80/x
  3. Step 3: Cross multiply
    475,454.80x = 713,009.40 × 238,718.80
  4. Step 4: Simplify right side
    475,454.80x = 170,208,748,356.72
  5. Step 5: Solve for x
    x = 170,208,748,356.72/475,454.80
  6. Step 6: Final answer
    x = 357,991.44

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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.