Home / 236,711.20-355,066.80-210,906.40

Finding the Fourth Proportional to 236,711.20, 355,066.80 and 210,906.40

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Solution

The fourth proportional to 236,711.20, 355,066.80 and 210,906.40 is: 316,359.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,711.20 : 355,066.80 = 210,906.40 : x
  2. Step 2: Convert to fraction form
    236,711.20/355,066.80 = 210,906.40/x
  3. Step 3: Cross multiply
    236,711.20x = 355,066.80 × 210,906.40
  4. Step 4: Simplify right side
    236,711.20x = 74,885,860,547.52
  5. Step 5: Solve for x
    x = 74,885,860,547.52/236,711.20
  6. Step 6: Final answer
    x = 316,359.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.