Home / 285,208.95-393,593.01-156,145.26

Finding the Fourth Proportional to 285,208.95, 393,593.01 and 156,145.26

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Solution

The fourth proportional to 285,208.95, 393,593.01 and 156,145.26 is: 215,483.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,208.95 : 393,593.01 = 156,145.26 : x
  2. Step 2: Convert to fraction form
    285,208.95/393,593.01 = 156,145.26/x
  3. Step 3: Cross multiply
    285,208.95x = 393,593.01 × 156,145.26
  4. Step 4: Simplify right side
    285,208.95x = 61,457,683,771.06
  5. Step 5: Solve for x
    x = 61,457,683,771.06/285,208.95
  6. Step 6: Final answer
    x = 215,483.01

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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.