Home / 385,608.18-532,159.65-242,315.22

Finding the Fourth Proportional to 385,608.18, 532,159.65 and 242,315.22

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Solution

The fourth proportional to 385,608.18, 532,159.65 and 242,315.22 is: 334,407.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,608.18 : 532,159.65 = 242,315.22 : x
  2. Step 2: Convert to fraction form
    385,608.18/532,159.65 = 242,315.22/x
  3. Step 3: Cross multiply
    385,608.18x = 532,159.65 × 242,315.22
  4. Step 4: Simplify right side
    385,608.18x = 128,950,382,664.87
  5. Step 5: Solve for x
    x = 128,950,382,664.87/385,608.18
  6. Step 6: Final answer
    x = 334,407.80

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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.