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Finding the Fourth Proportional to 349,744.40, 524,746.20 and 139,533.20

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Solution

The fourth proportional to 349,744.40, 524,746.20 and 139,533.20 is: 209,351.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,744.40 : 524,746.20 = 139,533.20 : x
  2. Step 2: Convert to fraction form
    349,744.40/524,746.20 = 139,533.20/x
  3. Step 3: Cross multiply
    349,744.40x = 524,746.20 × 139,533.20
  4. Step 4: Simplify right side
    349,744.40x = 73,219,516,473.84
  5. Step 5: Solve for x
    x = 73,219,516,473.84/349,744.40
  6. Step 6: Final answer
    x = 209,351.50

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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.