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Finding the Fourth Proportional to 518,273.16, 714,972.60 and 303,281.34

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Solution

The fourth proportional to 518,273.16, 714,972.60 and 303,281.34 is: 418,385.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,273.16 : 714,972.60 = 303,281.34 : x
  2. Step 2: Convert to fraction form
    518,273.16/714,972.60 = 303,281.34/x
  3. Step 3: Cross multiply
    518,273.16x = 714,972.60 × 303,281.34
  4. Step 4: Simplify right side
    518,273.16x = 216,837,848,191.28
  5. Step 5: Solve for x
    x = 216,837,848,191.28/518,273.16
  6. Step 6: Final answer
    x = 418,385.25

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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.