Home / 212,852.16-317,400.42-202,387.20

Finding the Fourth Proportional to 212,852.16, 317,400.42 and 202,387.20

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Solution

The fourth proportional to 212,852.16, 317,400.42 and 202,387.20 is: 301,795.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,852.16 : 317,400.42 = 202,387.20 : x
  2. Step 2: Convert to fraction form
    212,852.16/317,400.42 = 202,387.20/x
  3. Step 3: Cross multiply
    212,852.16x = 317,400.42 × 202,387.20
  4. Step 4: Simplify right side
    212,852.16x = 64,237,782,282.62
  5. Step 5: Solve for x
    x = 64,237,782,282.62/212,852.16
  6. Step 6: Final answer
    x = 301,795.30

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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.