Home / 384,899.40-531,144.45-210,466.40

Finding the Fourth Proportional to 384,899.40, 531,144.45 and 210,466.40

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Solution

The fourth proportional to 384,899.40, 531,144.45 and 210,466.40 is: 290,434.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,899.40 : 531,144.45 = 210,466.40 : x
  2. Step 2: Convert to fraction form
    384,899.40/531,144.45 = 210,466.40/x
  3. Step 3: Cross multiply
    384,899.40x = 531,144.45 × 210,466.40
  4. Step 4: Simplify right side
    384,899.40x = 111,788,057,615.76
  5. Step 5: Solve for x
    x = 111,788,057,615.76/384,899.40
  6. Step 6: Final answer
    x = 290,434.48

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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.