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Finding the Fourth Proportional to 210,156.02, 315,448.46 and 153,828.82

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Solution

The fourth proportional to 210,156.02, 315,448.46 and 153,828.82 is: 230,900.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,156.02 : 315,448.46 = 153,828.82 : x
  2. Step 2: Convert to fraction form
    210,156.02/315,448.46 = 153,828.82/x
  3. Step 3: Cross multiply
    210,156.02x = 315,448.46 × 153,828.82
  4. Step 4: Simplify right side
    210,156.02x = 48,525,064,372.62
  5. Step 5: Solve for x
    x = 48,525,064,372.62/210,156.02
  6. Step 6: Final answer
    x = 230,900.19

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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.