Home / 219,200.33-302,526.95-128,585.63

Finding the Fourth Proportional to 219,200.33, 302,526.95 and 128,585.63

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Solution

The fourth proportional to 219,200.33, 302,526.95 and 128,585.63 is: 177,466.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,200.33 : 302,526.95 = 128,585.63 : x
  2. Step 2: Convert to fraction form
    219,200.33/302,526.95 = 128,585.63/x
  3. Step 3: Cross multiply
    219,200.33x = 302,526.95 × 128,585.63
  4. Step 4: Simplify right side
    219,200.33x = 38,900,616,302.17
  5. Step 5: Solve for x
    x = 38,900,616,302.17/219,200.33
  6. Step 6: Final answer
    x = 177,466.05

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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.