Home / 388,948.32-536,748.66-210,100.32

Finding the Fourth Proportional to 388,948.32, 536,748.66 and 210,100.32

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Solution

The fourth proportional to 388,948.32, 536,748.66 and 210,100.32 is: 289,938.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,948.32 : 536,748.66 = 210,100.32 : x
  2. Step 2: Convert to fraction form
    388,948.32/536,748.66 = 210,100.32/x
  3. Step 3: Cross multiply
    388,948.32x = 536,748.66 × 210,100.32
  4. Step 4: Simplify right side
    388,948.32x = 112,771,065,225.57
  5. Step 5: Solve for x
    x = 112,771,065,225.57/388,948.32
  6. Step 6: Final answer
    x = 289,938.43

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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.