Home / 472,180.13-651,589.61-257,315.57

Finding the Fourth Proportional to 472,180.13, 651,589.61 and 257,315.57

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Solution

The fourth proportional to 472,180.13, 651,589.61 and 257,315.57 is: 355,085.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,180.13 : 651,589.61 = 257,315.57 : x
  2. Step 2: Convert to fraction form
    472,180.13/651,589.61 = 257,315.57/x
  3. Step 3: Cross multiply
    472,180.13x = 651,589.61 × 257,315.57
  4. Step 4: Simplify right side
    472,180.13x = 167,664,151,903.23
  5. Step 5: Solve for x
    x = 167,664,151,903.23/472,180.13
  6. Step 6: Final answer
    x = 355,085.15

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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.