Home / 321,031.60-481,547.40-163,567.60

Finding the Fourth Proportional to 321,031.60, 481,547.40 and 163,567.60

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Solution

The fourth proportional to 321,031.60, 481,547.40 and 163,567.60 is: 245,351.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,031.60 : 481,547.40 = 163,567.60 : x
  2. Step 2: Convert to fraction form
    321,031.60/481,547.40 = 163,567.60/x
  3. Step 3: Cross multiply
    321,031.60x = 481,547.40 × 163,567.60
  4. Step 4: Simplify right side
    321,031.60x = 78,765,552,504.24
  5. Step 5: Solve for x
    x = 78,765,552,504.24/321,031.60
  6. Step 6: Final answer
    x = 245,351.40

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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.