Home / 353,124.60-528,995.70-212,465.40

Finding the Fourth Proportional to 353,124.60, 528,995.70 and 212,465.40

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Solution

The fourth proportional to 353,124.60, 528,995.70 and 212,465.40 is: 318,282.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,124.60 : 528,995.70 = 212,465.40 : x
  2. Step 2: Convert to fraction form
    353,124.60/528,995.70 = 212,465.40/x
  3. Step 3: Cross multiply
    353,124.60x = 528,995.70 × 212,465.40
  4. Step 4: Simplify right side
    353,124.60x = 112,393,282,998.78
  5. Step 5: Solve for x
    x = 112,393,282,998.78/353,124.60
  6. Step 6: Final answer
    x = 318,282.22

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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.