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Finding the Fourth Proportional to 152,477.21, 210,420.49 and 84,495.51

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Solution

The fourth proportional to 152,477.21, 210,420.49 and 84,495.51 is: 116,604.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,477.21 : 210,420.49 = 84,495.51 : x
  2. Step 2: Convert to fraction form
    152,477.21/210,420.49 = 84,495.51/x
  3. Step 3: Cross multiply
    152,477.21x = 210,420.49 × 84,495.51
  4. Step 4: Simplify right side
    152,477.21x = 17,779,586,405.76
  5. Step 5: Solve for x
    x = 17,779,586,405.76/152,477.21
  6. Step 6: Final answer
    x = 116,604.88

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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.