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Finding the Fourth Proportional to 247,075.32, 340,963.90 and 133,898.07

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Solution

The fourth proportional to 247,075.32, 340,963.90 and 133,898.07 is: 184,779.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,075.32 : 340,963.90 = 133,898.07 : x
  2. Step 2: Convert to fraction form
    247,075.32/340,963.90 = 133,898.07/x
  3. Step 3: Cross multiply
    247,075.32x = 340,963.90 × 133,898.07
  4. Step 4: Simplify right side
    247,075.32x = 45,654,408,149.67
  5. Step 5: Solve for x
    x = 45,654,408,149.67/247,075.32
  6. Step 6: Final answer
    x = 184,779.31

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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.