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Finding the Fourth Proportional to 291,058.45, 436,660.32 and 101,521.55

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Solution

The fourth proportional to 291,058.45, 436,660.32 and 101,521.55 is: 152,307.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,058.45 : 436,660.32 = 101,521.55 : x
  2. Step 2: Convert to fraction form
    291,058.45/436,660.32 = 101,521.55/x
  3. Step 3: Cross multiply
    291,058.45x = 436,660.32 × 101,521.55
  4. Step 4: Simplify right side
    291,058.45x = 44,330,430,326.59
  5. Step 5: Solve for x
    x = 44,330,430,326.59/291,058.45
  6. Step 6: Final answer
    x = 152,307.66

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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.