Home / 291,510.45-402,385.08-170,690.58

Finding the Fourth Proportional to 291,510.45, 402,385.08 and 170,690.58

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Solution

The fourth proportional to 291,510.45, 402,385.08 and 170,690.58 is: 235,611.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,510.45 : 402,385.08 = 170,690.58 : x
  2. Step 2: Convert to fraction form
    291,510.45/402,385.08 = 170,690.58/x
  3. Step 3: Cross multiply
    291,510.45x = 402,385.08 × 170,690.58
  4. Step 4: Simplify right side
    291,510.45x = 68,683,342,688.55
  5. Step 5: Solve for x
    x = 68,683,342,688.55/291,510.45
  6. Step 6: Final answer
    x = 235,611.94

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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.