Home / 283,328.72-390,994.80-170,153.36

Finding the Fourth Proportional to 283,328.72, 390,994.80 and 170,153.36

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Solution

The fourth proportional to 283,328.72, 390,994.80 and 170,153.36 is: 234,812.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,328.72 : 390,994.80 = 170,153.36 : x
  2. Step 2: Convert to fraction form
    283,328.72/390,994.80 = 170,153.36/x
  3. Step 3: Cross multiply
    283,328.72x = 390,994.80 × 170,153.36
  4. Step 4: Simplify right side
    283,328.72x = 66,529,078,962.53
  5. Step 5: Solve for x
    x = 66,529,078,962.53/283,328.72
  6. Step 6: Final answer
    x = 234,812.34

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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.