Home / 311,341.04-429,571.36-190,438.16

Finding the Fourth Proportional to 311,341.04, 429,571.36 and 190,438.16

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Solution

The fourth proportional to 311,341.04, 429,571.36 and 190,438.16 is: 262,756.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,341.04 : 429,571.36 = 190,438.16 : x
  2. Step 2: Convert to fraction form
    311,341.04/429,571.36 = 190,438.16/x
  3. Step 3: Cross multiply
    311,341.04x = 429,571.36 × 190,438.16
  4. Step 4: Simplify right side
    311,341.04x = 81,806,779,387.10
  5. Step 5: Solve for x
    x = 81,806,779,387.10/311,341.04
  6. Step 6: Final answer
    x = 262,756.17

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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.