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Finding the Fourth Proportional to 260,045.50, 358,862.79 and 140,813.50

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Solution

The fourth proportional to 260,045.50, 358,862.79 and 140,813.50 is: 194,322.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,045.50 : 358,862.79 = 140,813.50 : x
  2. Step 2: Convert to fraction form
    260,045.50/358,862.79 = 140,813.50/x
  3. Step 3: Cross multiply
    260,045.50x = 358,862.79 × 140,813.50
  4. Step 4: Simplify right side
    260,045.50x = 50,532,725,479.67
  5. Step 5: Solve for x
    x = 50,532,725,479.67/260,045.50
  6. Step 6: Final answer
    x = 194,322.63

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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.