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Finding the Fourth Proportional to 375,307.51, 517,961.34 and 214,186.81

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Solution

The fourth proportional to 375,307.51, 517,961.34 and 214,186.81 is: 295,598.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,307.51 : 517,961.34 = 214,186.81 : x
  2. Step 2: Convert to fraction form
    375,307.51/517,961.34 = 214,186.81/x
  3. Step 3: Cross multiply
    375,307.51x = 517,961.34 × 214,186.81
  4. Step 4: Simplify right side
    375,307.51x = 110,940,483,457.19
  5. Step 5: Solve for x
    x = 110,940,483,457.19/375,307.51
  6. Step 6: Final answer
    x = 295,598.89

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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.