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Finding the Fourth Proportional to 651,641.40, 977,510.70 and 230,862.60

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Solution

The fourth proportional to 651,641.40, 977,510.70 and 230,862.60 is: 346,311.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,641.40 : 977,510.70 = 230,862.60 : x
  2. Step 2: Convert to fraction form
    651,641.40/977,510.70 = 230,862.60/x
  3. Step 3: Cross multiply
    651,641.40x = 977,510.70 × 230,862.60
  4. Step 4: Simplify right side
    651,641.40x = 225,670,661,729.82
  5. Step 5: Solve for x
    x = 225,670,661,729.82/651,641.40
  6. Step 6: Final answer
    x = 346,311.12

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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.