Home / 380,664.40-525,302.94-219,526.24

Finding the Fourth Proportional to 380,664.40, 525,302.94 and 219,526.24

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Solution

The fourth proportional to 380,664.40, 525,302.94 and 219,526.24 is: 302,938.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,664.40 : 525,302.94 = 219,526.24 : x
  2. Step 2: Convert to fraction form
    380,664.40/525,302.94 = 219,526.24/x
  3. Step 3: Cross multiply
    380,664.40x = 525,302.94 × 219,526.24
  4. Step 4: Simplify right side
    380,664.40x = 115,317,779,279.15
  5. Step 5: Solve for x
    x = 115,317,779,279.15/380,664.40
  6. Step 6: Final answer
    x = 302,938.18

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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.