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Finding the Fourth Proportional to 457,552.48, 686,094.72 and 191,240.32

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Solution

The fourth proportional to 457,552.48, 686,094.72 and 191,240.32 is: 286,762.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,552.48 : 686,094.72 = 191,240.32 : x
  2. Step 2: Convert to fraction form
    457,552.48/686,094.72 = 191,240.32/x
  3. Step 3: Cross multiply
    457,552.48x = 686,094.72 × 191,240.32
  4. Step 4: Simplify right side
    457,552.48x = 131,208,973,803.11
  5. Step 5: Solve for x
    x = 131,208,973,803.11/457,552.48
  6. Step 6: Final answer
    x = 286,762.68

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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.