Home / 285,064.02-393,430.08-164,181.78

Finding the Fourth Proportional to 285,064.02, 393,430.08 and 164,181.78

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Solution

The fourth proportional to 285,064.02, 393,430.08 and 164,181.78 is: 226,594.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,064.02 : 393,430.08 = 164,181.78 : x
  2. Step 2: Convert to fraction form
    285,064.02/393,430.08 = 164,181.78/x
  3. Step 3: Cross multiply
    285,064.02x = 393,430.08 × 164,181.78
  4. Step 4: Simplify right side
    285,064.02x = 64,594,050,839.94
  5. Step 5: Solve for x
    x = 64,594,050,839.94/285,064.02
  6. Step 6: Final answer
    x = 226,594.89

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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.