Home / 261,946.15-361,480.86-145,666.80

Finding the Fourth Proportional to 261,946.15, 361,480.86 and 145,666.80

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Solution

The fourth proportional to 261,946.15, 361,480.86 and 145,666.80 is: 201,017.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,946.15 : 361,480.86 = 145,666.80 : x
  2. Step 2: Convert to fraction form
    261,946.15/361,480.86 = 145,666.80/x
  3. Step 3: Cross multiply
    261,946.15x = 361,480.86 × 145,666.80
  4. Step 4: Simplify right side
    261,946.15x = 52,655,760,137.45
  5. Step 5: Solve for x
    x = 52,655,760,137.45/261,946.15
  6. Step 6: Final answer
    x = 201,017.50

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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.