Home / 257,965.20-385,210.71-210,674.16

Finding the Fourth Proportional to 257,965.20, 385,210.71 and 210,674.16

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Solution

The fourth proportional to 257,965.20, 385,210.71 and 210,674.16 is: 314,592.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,965.20 : 385,210.71 = 210,674.16 : x
  2. Step 2: Convert to fraction form
    257,965.20/385,210.71 = 210,674.16/x
  3. Step 3: Cross multiply
    257,965.20x = 385,210.71 × 210,674.16
  4. Step 4: Simplify right side
    257,965.20x = 81,153,942,752.25
  5. Step 5: Solve for x
    x = 81,153,942,752.25/257,965.20
  6. Step 6: Final answer
    x = 314,592.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.