Home / 349,746.40-524,749.20-139,535.20

Finding the Fourth Proportional to 349,746.40, 524,749.20 and 139,535.20

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Solution

The fourth proportional to 349,746.40, 524,749.20 and 139,535.20 is: 209,354.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,746.40 : 524,749.20 = 139,535.20 : x
  2. Step 2: Convert to fraction form
    349,746.40/524,749.20 = 139,535.20/x
  3. Step 3: Cross multiply
    349,746.40x = 524,749.20 × 139,535.20
  4. Step 4: Simplify right side
    349,746.40x = 73,220,984,571.84
  5. Step 5: Solve for x
    x = 73,220,984,571.84/349,746.40
  6. Step 6: Final answer
    x = 209,354.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.