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Finding the Fourth Proportional to 253,222.71, 349,477.47 and 145,813.67

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Solution

The fourth proportional to 253,222.71, 349,477.47 and 145,813.67 is: 201,240.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,222.71 : 349,477.47 = 145,813.67 : x
  2. Step 2: Convert to fraction form
    253,222.71/349,477.47 = 145,813.67/x
  3. Step 3: Cross multiply
    253,222.71x = 349,477.47 × 145,813.67
  4. Step 4: Simplify right side
    253,222.71x = 50,958,592,661.32
  5. Step 5: Solve for x
    x = 50,958,592,661.32/253,222.71
  6. Step 6: Final answer
    x = 201,240.22

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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.