Home / 253,120.18-349,312.89-139,950.22

Finding the Fourth Proportional to 253,120.18, 349,312.89 and 139,950.22

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Solution

The fourth proportional to 253,120.18, 349,312.89 and 139,950.22 is: 193,135.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,120.18 : 349,312.89 = 139,950.22 : x
  2. Step 2: Convert to fraction form
    253,120.18/349,312.89 = 139,950.22/x
  3. Step 3: Cross multiply
    253,120.18x = 349,312.89 × 139,950.22
  4. Step 4: Simplify right side
    253,120.18x = 48,886,415,804.34
  5. Step 5: Solve for x
    x = 48,886,415,804.34/253,120.18
  6. Step 6: Final answer
    x = 193,135.20

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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.